How do I combine the softdevice, my application, and the dfu into a single hex?

RE: How do I combine the softdevice, my application, and the dfu into a single hex?

Chris — Wed, 24 Sep 2014 10:19:22 GMT

Thanks Nikita, I managed to piece it together from the threads. I used your screenshot PLUS the little snippet of code that needed changing in the settings (was quite a subtle change) and it's all good now.

Thanks for the informative post in the first place!

RE: How do I combine the softdevice, my application, and the dfu into a single hex?

Nikita — Wed, 24 Sep 2014 08:54:05 GMT

Chris, read this and this.

RE: How do I combine the softdevice, my application, and the dfu into a single hex?

Chris — Wed, 24 Sep 2014 08:21:32 GMT

How can it resolve the checksum issue? I just tried this and yes, it flashes my SD / Bootloader and App, but the boot loader fails to jump to the app since it wasn't loaded via the DFU.

RE: How do I combine the softdevice, my application, and the dfu into a single hex?

Akbar Dhanaliwala — Thu, 28 Aug 2014 14:12:45 GMT

Thanks Nikita!

RE: How do I combine the softdevice, my application, and the dfu into a single hex?

Nikita — Thu, 28 Aug 2014 14:03:56 GMT

You can solve checksum problem with this.

And it's not require 3 separate flash procedures, nrfjprog will parse all 3 input hex files and flash it all together.

RE: How do I combine the softdevice, my application, and the dfu into a single hex?

Akbar Dhanaliwala — Thu, 28 Aug 2014 13:56:05 GMT

This requires 3 separate flash procedures (not to mention this doesn't work either because the DFU writes the checksum to flash, so the application.hex needs to go through the DFU or on bootup the checksum will fail). I want a single master hex so I can do a single flash.

RE: How do I combine the softdevice, my application, and the dfu into a single hex?

Petter Myhre — Thu, 14 Aug 2014 14:56:30 GMT

If you got your answer, please accept it. If not, please comment why you didn't.

How are you testing that the files are not merged correctly? Please elaborate.

RE: How do I combine the softdevice, my application, and the dfu into a single hex?

Nikita — Fri, 25 Jul 2014 15:46:21 GMT

Why not do like this?

nrfjprog.exe --eraseall --programs softdevice.hex --program application.hex bootloader.hex --verify --reset